71,040 research outputs found
Brevipalpus olearius Sayed 1950
No full text<i>Brevipalpus olearius</i> Sayed, 1950. <p>(Fig. 4 B).</p> <p> <i>Brevipalpus olearius</i> Sayed, 1950: 1018.</p> <p> <b>Material examined</b>: 2 females ex <i>Olea europea</i> L.(Oleaceae) <b>EGYPT:</b> Qalubia province, Moshtohor village, 30 <b>◦</b> 21'18"N, 31 <b>◦</b> 13'30"E, 19 May 2012, coll. A.M. Halawa; 2 females ex <i>Olea europea</i> L.(Oleaceae) <b>EGYPT</b>: Giza province, Dokki, 30 <b>◦</b> 02'6"N, 31 <b>◦</b> 13'30"E, 17 October 2012, coll. A.M. Halawa.; 1 female ex <i>Olea europea</i> L.(Oleaceae) <b>EGYPT</b>: El- Sharkia province, Enshas, 30 <b>◦</b> 23'6"N, 31 <b>◦</b> 27'18"E, 13 June, coll. M.M. Fawzy.</p> <p> <b>Remark.</b> The holotype of <i>Brevipalpus olearius</i> was found on <i>Olea europea</i> L in Egypt by Sayed (1950). Specimens collected in this study were compared with the holotype deposited at Plant Protection Research Institute (PPRI), Agricultural Research Center (ARC), Egypt.</p>Published as part of <i>Halawa, Alaa M. & Fawzy, Magdy M., 2014, A new species of Brevipalpus Donnadieu (Acari: Tenuipalpidae) and key to the Egyptian species, pp. 87-95 in Zootaxa 3755 (1)</i> on page 92, DOI: 10.11646/zootaxa.3755.1.4, <a href="http://zenodo.org/record/285474">http://zenodo.org/record/285474</a>
Developing porous diopside/hydroxyapatite bio-composite scaffolds via a combination of freeze-drying and coating process
No full textThe development of diopside/hydroxyapatite (DP/HA) bio-composite scaffolds, that possess an interconnected pore architecture via the combination of freeze-drying and coating process was studied. For coating the freeze-drying HA scaffolds by diopside, various impregnation times (1, 3, and 5 days) were applied, and followed by a sintering process at 950 °C. The alterations in microstructure, physico-mechanical behaviour and phase composition of the produced composites were investigated. In vitro bioactivity and degradation studies of the selected composite were also carried out. The results demonstrated that the diffusion of diopside within the hydroxyapatite scaffolds during the coating process improved the compressive strength of the composite material. HA scaffolds coated with diopside for 3 days were chosen for the remaining study due to their combination of adequate interconnected porosity (60.54 ± 1.02%) and suitable compressive strength (1.23 ± 0.04 MPa). The good bioactivity of DP/HA scaffolds was detected through the genesis of an apatite layer over the surface and their acceptable degradation rate in comparison to that of the blank HA scaffold
Mining e-mail content for author identification forensics
No full textWe describe an investigation into e-mail content mining for author identification, or authorship attribution, for the purpose of forensic investigation. We focus our discussion on the ability to discriminate between authors for the case of both aggregated e-mail topics as well as across different email topics. An extended set of e-mail document features including structural characteristics and linguistic patterns were derived and, together with a Support Vector Machine learning algorithm, were used for mining the e-mail content. Experiments using a number of e-mail documents generated by different authors on a set of topics gave promising results for both aggregated and multi-topic author categorisation
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Conservation in an Islamic context a case study of Makkah
No full textThe Holy Qu’ rān contains many injunctions for Muslims to respect and conserve the natural environment but few address the built environment. Habitat at the time of the Prophet (PBOH) was in the vernacular and relatively impermanent. The first habitat was the cave, the second the tent and then simple flat roofed buildings of post and lintel construction made of mud and rubble. Later buildings were not indigenous but reflected the architectural styles and techniques of Muslim pilgrims from beyond the Arabian Peninsula. Permanent exotic buildings were later erected as reminders of holy places and events. This work advances a case to restore and preserve historic and religious sites in Makkah, Saudi Arabia. Makkah is the destination for millions of Muslim pilgrims who annually pay homage to Allah during the occasions of Hajj, Ramadan and Umra. The tranquillity and peaceful ambience that one associates with the holiest of Islamic experiences have, over the years, given way to jostling crowds of people who must be expediently housed, fed, transported, and protected. Due to the lack of planning and the insensitive but profitable development of the city, Makkah is in grave danger of becoming a bustling metropolis instead of a sanctuary where pilgrims gather to perform their religious rites and reaffirm their dedication to Allah. The author calls for professional planning and international cooperation to guide future development for this expanding and sensitive area. The author's ideas are grounded in practical and aesthetic study, therefore, the political, environmental and economic issues are examined in relationship to religious, historic and artistic values. The author makes proposals for a future Makkah that would provide pilgrims with the physical comforts, security, and serene environment they deserve—without destroying the city they came to visit. The author discusses preservation and conservation in the western world and the need for their acceptance in Muslim countries, the former being an aesthetic and intellectual concept sustained by law and the latter being the prescribed free expression of the individual unhindered by material considerations. Both worlds are rapidly being overwhelmed by materialism, but body, mind and spirit combine in making us aware of our surroundings and the way in what we see around us has come into being
Spatial variability of phytoplankton in relation to the distributional patterns of Krill (Euphausia superba)
No full textTypescript (photocopy).The role of krill (Euphausia superba) in influencing the spatial variability of phytoplankton is examined. Data were collected during a cruise of the S.A. Agulhas (10 February - 20 March l981) in the area between 15(DEGREES)- 30(DEGREES) east and 60(DEGREES)- 70(DEGREES) south. Krill density and swarm characteristics (number, size, and biomass) were estimated acoustically. Data on phytoplankton biomass, productivity and species composition, together with data on the physico-chemical environment were obtained from discrete water samples collected from either 7 or 8 depths between 0-100 m at a total of 37 stations. Correlation, multiple regression, and canonical analyses are applied to the station data to examine interrelationships between the variables. Phytoplankton biomass is inversely correlated with mean krill density but positively correlated with the biomass of individual swarms. A positive correlation between krill density and the relative amounts of phaeo-pigments in the > 20- m size fraction of phytoplankton suggests that krill selectively feed on larger cells. The application of spectral analysis to continuous horizontal profiles of integrated krill density, surface seawater temperature, and in vivo fluorescence reveals that, over the range of 4-20 km, the variability in phytoplankton biomass is largely determined by physical processes. However, the steepness of the fluorescence variance spectrum relative to the temperature spectrum, together with consistent coherence between the phytoplankton and krill profiles suggest that predator-prey interactions are of importance in determining the distributional patterns of the phytoplankton
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
Cyclopropyl building blocks for organic synthesis part 64 - Facile preparation of hexahydropyrrolo[3,2-e][1,4]diazepine-2,5-diones and tetrahydrofuro[1H][3,2-e][1,4]diazepine-2,5-diones by rearrangements of cyclopropylketimines and cyclopropylketones
No full text[GRAPHICS] Chlorolactames 2a-f reacted with sodium azide to give the cyclopropylketimines 3a-f (75-89%), and acid hydrolysis of 3c,d yielded the cyclopropylketones 6c,d (61-67%), Compounds 3a-f and 6c,d were transformed by heating (170-240 degreesC, sublimation) to the air-sensitive dihydropyrroles 4a-f (51-71%) and dihydrofurans 7c,d (85-91%), Oxidation of the dihydro derivatives 4a-f and 7c,d with DDQ led to novel types of pyrrolo[3,2-e][1,4]diazepinedione derivatives 5a-f (75-84%) and furo[H-1][3,2-e][1,4]diazepinediones 8c,d (91-93%)
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